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#57 Gravel Calculator

Estimate how much #57 gravel you need for driveways, drainage and base layers. Enter your area and depth to get cubic yards and tons of #57 stone.

#57 Gravel Calculator

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#57 Gravel Calculator, live preview
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Enter values to see your estimate.

How to Calculate #57 Gravel

Change the calculator above and watch every figure and the diagram below update live.

Top-down view (area × depth)

W L depth 4"

Step 1 · Area

20 ft × 10 ft = 200 ft²

Step 2 · Volume (× depth, ÷ 27)

200 ft² × 0.33 ft ÷ 27 = 2.47 yd³

3.46
tons (× 1.4)
134
bags (÷ 0.5 ft³)

These figures update automatically as you change the calculator above.

#57 gravel coverage at a glance

Approximate coverage of one cubic yard of gravel at common depths.

Approximate coverage of one cubic yard of gravel at common depths.
DepthCoverage per yd³Relative coverage
1" 324 sq ft
100%
2" 162 sq ft
50%
3" 108 sq ft
33%
4" 81 sq ft
25%
6" 54 sq ft
17%
3 in
3"

At 3 inches deep, one cubic yard of gravel covers 108 sq ft.

#57 Gravel FAQs

What is #57 gravel?
#57 is a crushed stone screened to about 3/4 inch. Its angular shape and gaps make it excellent for drainage, driveways and base layers.
How much #57 gravel do I need?
Calculate area × depth ÷ 27 for cubic yards. #57 stone weighs roughly 1.4 tons per cubic yard.
Does #57 gravel compact?
It locks together but stays free-draining, so it doesn't fully compact like crusher run, which is why it's used for drainage.
How deep should #57 gravel be?
Use about 4 inches for a driveway top layer and 4–6 inches for a drainage or base application.

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